GDGW CK75 High Carbon Steel Strip – Professional Grade for Various Applications
Are you searching for a reliable supplier of CK75 steel strip? Look no further. At GDGW Steel, we specialize in the production of CK75 high carbon steel strip designed for demanding applications including bandsaw blades, industrial springs, and cutting tools.
What is CK75 Steel?
CK75 (DIN 1.1248, equivalent to C75S and AISI 1075) is a high carbon steel grade containing 0.70-0.80% carbon. This composition provides excellent hardness and wear resistance after proper heat treatment. The material is specifically designed for cold rolled steel strips requiring high dimensional accuracy and superior surface condition.
Why Choose GDGW CK75 Spring Steel Strip?
Precision Tolerances: Our cold rolling process ensures thickness tolerances as low as +/-0.01mm and width tolerances +/-0.10mm, guaranteeing consistent blade straightness and tooth set.
Customizable Heat Treatment: We supply CK75 high carbon steel strip in both Annealed (soft, for further forming) and Hardened & Tempered (H&T) conditions. The H&T condition offers uniform hardness (44-48 HRC) across the entire coil, reducing breakage during welding.
Superior Surface Finish: Available in bright polished, blue, yellow, or natural finish (Ra < 0.2μm) to reduce friction during high-speed cutting operations.
Flexible Edge Processing: Slit edge, fully rounded edge, or one-side rounded – we customize according to your saw blade requirements.
Technical Specifications:
|
Parameter |
Value
|
| Standard |
DIN 17222
|
| Material No. |
1.1248
|
| Equivalent |
C75S, AISI 1075
|
|
Carbon (C) |
0.70 - 0.80%
|
| Silicon (Si) |
0.15 - 0.35%
|
| Manganese (Mn) |
0.60 - 0.80%
|
| Tensile Strength |
Up to 1800 MPa
|
| Hardness |
40 - 55 HRC (customizable) for (H&T) Below 180HV for soft Annealed
|
| Density |
7.85 g/cm³
|
| Elastic Modulus |
210 GPa
|
Applications of CK75 Steel Strip
Our customers use our CK75 spring steel strip to manufacture:
Bandsaw Blades – Backer material for bimetal blades
Wood Cutting Band Saws – Wide strips for timber processing
Industrial Springs – Cold rolled spring strips
Cutting Tools – Knives, scrapers, and blades
Automotive Components – Spring clips and retainers
Rolling Shutter Springs – High-cycle fatigue applications
Packaging & Shipping
Each coil of CK75 high carbon steel strip is:
Wrapped with VCI anti-rust paper and light oil
Sealed in plastic film
Packed on wooden pallets suitable for sea freight
We export worldwide from China with competitive factory pricing.
Contact GDGW Steel Today
Request a free sample or get a quote for CK75 steel strip. We offer consistent quality, tight tolerances, and reliable delivery.





